Chinese Physics C > 1991, Vol. 15 > Issue(2): 150-157

Relation Between the Gap at Z=64 Subshell and the Abrupt Transition in the Region N=88～90

Institute of Particle Physics,Hua-Zhong Normal Univer,Wuhan 430070

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Abstract：
The onset of deformation in the N=88～90 region and the effects of the gap at Z=64 subshell on nucler structure are investigated in a microscopic approach of the interacting boson model.It turns out that,besides the n-p interaction,the distribution of single particle levels in the shell model space also plays a direct and important role in the rapid transition of spectrum structure.For Nd～Dy nuclei the calculations show excellent agreement agreement with experimental energy systematics.

References

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张敬业，钟纪泉，李宝安，高能物理与核物理，1(1986)，92,[2] R. F. Casten et al., Phys. Rev. Lett., 47(1981), 1433.[3] R. L. Gill, R. F. Casten et al., Phys: Lett., 118(1982), 251.[4] R. F. Casten, W. Frank and P. Von Brentano, Nucl. Phys., A444(1985), 133.[5] E. Ye. Berlovich and F. F. Karpeshin, Phys. Lett., B177(1986), 260.[6] P. Mukherjee, R. Bhattacharya, and I, Mukherjee, Phys. Rev., C24(1981), 1810 and referencetherein.[7] 刘庸，华中师范大学学报(自然科学版)，Vol. 20(1986), 289.[8] Z. S. Yang, Liu Yong and Qi Hui, Nucl. Phys., A421(1984), 297.[9] T. Otsuka, A. Arima, and F. Iachello, Nucl. Phys., A309(1978), 1.[10] L. M. Yang, Collective Bands in Nuclei, in: Progress in Particle and Nuclei, Vol., 9, Ed. D.Wilkinson (Pergamon Press. (1983)) pp. 147一L82.[11] 杨泽森，刘庸，田晓岑，高能物理与核物理，s(19az),472;杨泽森，高能物理与核物理，9(1985),341.[12] 刘庸，田晓岑，杨泽森，高能物理与核物理，6(1983),480,[13] P. Kleinheinz. Proc. Symp. on High-Spin Phenomena in Nuclei 15-17 March (1979), Argonne,p. 125.[14] T. Otsuka and N. Yoshida, JAER1-M Report, 85-094.[15] J. L. Wood., Nucl. Phys., A421(1984), 43; Nucl. Data Sheets, 29(1980), 587; 35(1982), 375; 38(1983), 545.

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SANG Jian-Ping, LIU Chao-Shan and LIU Yong. Relation Between the Gap at Z=64 Subshell and the Abrupt Transition in the Region N=88～90[J]. Chinese Physics C, 1991, 15(2): 150-157.

SANG Jian-Ping, LIU Chao-Shan and LIU Yong. Relation Between the Gap at Z=64 Subshell and the Abrupt Transition in the Region N=88～90[J]. Chinese Physics C, 1991, 15(2): 150-157. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Relation Between the Gap at Z=64 Subshell and the Abrupt Transition in the Region N=88～90

Corresponding author:SANG Jian-Ping,

Institute of Particle Physics,Hua-Zhong Normal Univer,Wuhan 430070

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1991-02-05

Abstract:The onset of deformation in the N=88～90 region and the effects of the gap at Z=64 subshell on nucler structure are investigated in a microscopic approach of the interacting boson model.It turns out that,besides the n-p interaction,the distribution of single particle levels in the shell model space also plays a direct and important role in the rapid transition of spectrum structure.For Nd～Dy nuclei the calculations show excellent agreement agreement with experimental energy systematics.